Unverified Commit ddd402bb authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Christian Brauner
Browse files

iomap: pass private data to iomap_truncate_page 



Allow the file system to pass private data which can be used by the
iomap_begin and iomap_end methods through the private pointer in the
iomap_iter structure.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250206064035.2323428-12-hch@lst.de


Reviewed-by: default avatar"Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent c6d1b8d1

fs/iomap/buffered-io.c

+2 −2
Original line number Diff line number Diff line
@@ -1458,7 +1458,7 @@ EXPORT_SYMBOL_GPL(iomap_zero_range); 


int

iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,

		const struct iomap_ops *ops)

		const struct iomap_ops *ops, void *private)

{

	unsigned int blocksize = i_blocksize(inode);

	unsigned int off = pos & (blocksize - 1);
@@ -1467,7 +1467,7 @@ iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, 
	if (!off)

		return 0;

	return iomap_zero_range(inode, pos, blocksize - off, did_zero, ops,

			NULL);

			private);

}

EXPORT_SYMBOL_GPL(iomap_truncate_page);

fs/xfs/xfs_iomap.c

+1 −1
Original line number Diff line number Diff line
@@ -1512,5 +1512,5 @@ xfs_truncate_page( 
		return dax_truncate_page(inode, pos, did_zero,

					&xfs_dax_write_iomap_ops);

	return iomap_truncate_page(inode, pos, did_zero,

				   &xfs_buffered_write_iomap_ops);

				   &xfs_buffered_write_iomap_ops, NULL);

}

include/linux/iomap.h

+1 −1
Original line number Diff line number Diff line
@@ -315,7 +315,7 @@ int iomap_file_unshare(struct inode *inode, loff_t pos, loff_t len, 
int iomap_zero_range(struct inode *inode, loff_t pos, loff_t len,

		bool *did_zero, const struct iomap_ops *ops, void *private);

int iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,

		const struct iomap_ops *ops);

		const struct iomap_ops *ops, void *private);

vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf, const struct iomap_ops *ops,

		void *private);

typedef void (*iomap_punch_t)(struct inode *inode, loff_t offset, loff_t length,